The Spikenzie Labs Solder:Time Desk Clock is a fun through-hole kit to solder together. It includes a snap-together lasercut acrylic case with a really nice red tinted screen that increases the contrast on the 20×7 red LED matrix. Plus it is totally hackable with quite a few unused pins available for expansion (like Holly’s sunrise alarm clock).

The kit is available from Adafruit and I’ve written more information on information on programming custom firmware for the Arduino-compatible ATmega328P that is the brains of the clock.